RADIO REPORTING (CALLING-IN) POINTS Vessels sailing along Uruguayan and Argentinian waters are required to participate in the Traffic Control Centres and Maritime Information System, Río de la Plata Traffic Control System, and Martín García Channels Communications System (SICOSEMAGA). For further details, see Published Maritime Information (IMP Uruguay, Uruguayan Coast Guard), Publication H-221 (Argentine Hydrographic Service) and Regulations on Uses and Navigation of Martín García Channels (REMAGA)

MARTÍN GARCÍA CHANNELS
S1 – Km 39-93 Buenos Aires Prefectura Radio L2G 81 VHF/14VHF
N2 – Km 93-145.5 Control Carmelo Prefectura Radio CWC22 81 VHF/11VHF

URUGUAY RIVER – ZULU ZONE
1st shift: Paranacito Prefectura Naval Radio L5Z Dates: 1º/1 – 30/6
2nd shift: Nueva Palmira Prefectura Radio CWC31 Dates: 1º/7 – 31/12

NUEVA PALMIRA PORT - FOXTROT ZONE
Port Area: Nueva Palmira Port, berth, conveyors and Higueritas dock